DE2932965A1 - Optisches system mit einer linsengruppe zur scharfeinstellung - Google Patents

Optisches system mit einer linsengruppe zur scharfeinstellung

Info

Publication number
DE2932965A1
DE2932965A1 DE19792932965 DE2932965A DE2932965A1 DE 2932965 A1 DE2932965 A1 DE 2932965A1 DE 19792932965 DE19792932965 DE 19792932965 DE 2932965 A DE2932965 A DE 2932965A DE 2932965 A1 DE2932965 A1 DE 2932965A1
Authority
DE
Germany
Prior art keywords
lens
lens group
optical system
focusing
plane
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
DE19792932965
Other languages
German (de)
English (en)
Other versions
DE2932965C2 (enrdf_load_stackoverflow
Inventor
Isao Matsumura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Publication of DE2932965A1 publication Critical patent/DE2932965A1/de
Application granted granted Critical
Publication of DE2932965C2 publication Critical patent/DE2932965C2/de
Granted legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification

Landscapes

  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Biophysics (AREA)
  • Ophthalmology & Optometry (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Optics & Photonics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Eye Examination Apparatus (AREA)
DE19792932965 1978-08-15 1979-08-14 Optisches system mit einer linsengruppe zur scharfeinstellung Granted DE2932965A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53099365A JPS6051094B2 (ja) 1978-08-15 1978-08-15 合焦用可動レンズ群を有する光学系

Publications (2)

Publication Number Publication Date
DE2932965A1 true DE2932965A1 (de) 1980-02-28
DE2932965C2 DE2932965C2 (enrdf_load_stackoverflow) 1988-05-11

Family

ID=14245525

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792932965 Granted DE2932965A1 (de) 1978-08-15 1979-08-14 Optisches system mit einer linsengruppe zur scharfeinstellung

Country Status (3)

Country Link
US (1) US4318585A (enrdf_load_stackoverflow)
JP (1) JPS6051094B2 (enrdf_load_stackoverflow)
DE (1) DE2932965A1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3733872A1 (de) * 1986-12-01 1988-06-23 Jenoptik Jena Gmbh Anordnung zur bestimmung des sphaerischen refraktionszustandes des auges

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5611427A (en) 1979-07-10 1981-02-04 Canon Inc Variable power afocal lens system
JPS58150924A (ja) * 1982-03-04 1983-09-07 Nippon Kogaku Kk <Nikon> 二重共役維持光学系
US4705367A (en) * 1986-05-14 1987-11-10 United Technologies Corporation Variable focal length optical system having a constant diameter focal spot
JPH0820666B2 (ja) * 1987-02-24 1996-03-04 旭光学工業株式会社 フアインダ−装置
US5054896A (en) * 1988-12-19 1991-10-08 Infinity Photo-Optical Corporation Continuously focusable microscope incorporating an afocal variator optical system
US5191469A (en) * 1988-03-17 1993-03-02 Margolis H Jay Afocal variation focusing system for mirrored optical systems
WO2000030527A1 (en) 1998-11-24 2000-06-02 Welch Allyn, Inc. Eye viewing device for retinal viewing through undilated pupil
US6637882B1 (en) 1998-11-24 2003-10-28 Welch Allyn, Inc. Eye viewing device for retinal viewing through undilated pupil
US6806899B1 (en) 1999-07-17 2004-10-19 David F. Schaack Focusing systems for perspective dimensional measurements and optical metrology
ATE427693T1 (de) * 2003-10-28 2009-04-15 Welch Allyn Inc Digitales dokumentier-ophthalmoskop
DE102005040830A1 (de) * 2005-08-25 2007-03-15 Carl Zeiss Jena Gmbh Optische Anordnung und Verfahren zur Abbildung tiefenstrukturierter Objekte
US7869139B2 (en) * 2008-10-30 2011-01-11 Infinity Photo Optical Modular afocal variator optical system providing focus with constant magnification
US9164266B2 (en) 2009-02-19 2015-10-20 Infinity Photo-Optical Company Complex modular afocal variator with spherical and chromatic aberration correction
US11953752B1 (en) 2017-08-18 2024-04-09 H. Jay Margolis Universal photographic and cinematographic lens system
US10935753B1 (en) 2017-08-18 2021-03-02 H. Jay Margolis Universal photographic and cinematographic lens system
US12321036B1 (en) 2018-09-05 2025-06-03 H. Jay Margolis Complex focusing system with modulating lenses
US11269156B1 (en) 2018-09-05 2022-03-08 H. Jay Margolis Complex focusing system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3259039A (en) * 1962-09-18 1966-07-05 Nippon Kogaku Kk Ophthalmoscopic camera
DE1282318B (de) * 1964-06-29 1968-11-07 Fisba Optische Praez S Instr A Netzhautkamera
DE2435548A1 (de) * 1973-11-13 1975-05-15 Jenoptik Jena Gmbh Optisches system zur fotografie der netzhaut mit waehlbarem abbildungsmasstab

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3259039A (en) * 1962-09-18 1966-07-05 Nippon Kogaku Kk Ophthalmoscopic camera
DE1282318B (de) * 1964-06-29 1968-11-07 Fisba Optische Praez S Instr A Netzhautkamera
DE2435548A1 (de) * 1973-11-13 1975-05-15 Jenoptik Jena Gmbh Optisches system zur fotografie der netzhaut mit waehlbarem abbildungsmasstab

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3733872A1 (de) * 1986-12-01 1988-06-23 Jenoptik Jena Gmbh Anordnung zur bestimmung des sphaerischen refraktionszustandes des auges

Also Published As

Publication number Publication date
JPS6051094B2 (ja) 1985-11-12
DE2932965C2 (enrdf_load_stackoverflow) 1988-05-11
US4318585A (en) 1982-03-09
JPS5526538A (en) 1980-02-26

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8363 Opposition against the patent
8331 Complete revocation